Glass-forming machinery.



W. W. W. KEYBS. GLASS FORMING MAGHINERY. APPLIOAIIORZIILED JAN-1'6, mos.

Patented Oct. 5, 1909.

2 sums-sun:- 2.

INVENTOR' M'l/iam M! K r s.

Arron/my 55 rendered imperfect.

UNITE STATES PATENT FFIQ,

WILLIAM W. W. KEYES, OF ALEXANDRIA, INDIANA.

GLASS-FORMING MACHINERY.

\ Specification of Letters Patent.

Application filed January 16, 1908.

that class of machinery used for the forma tion of the well known longtubes or cylinders from which window-glass is produced. .-In this typeof machines, a carriage that supports a detachably retained blow-pipe issup- 1 5 port-ed on a suitable structure and so ar ranged that it may bereciprocated vertically above the drawing-kiln or ladle in which themolten glass is retained, so that the end of the blow-pipe may belowered into the molt-en glass and then raised. Inthis kind ofmachiuerysuch construction of'the yaisiug and lowering means, andair-pipe connections have been adopted and such means of control of themovement of the car- '25 riage and of the air pressure-havebeenutilized, that'the blowing or formation of these glass cylinders isaccomplished with varying degrees of success. In the formation of thesecylinders as hitherto practiced the air-pres sure which fills theblow-pppe is temporarily released by removing a p ug that movably fillsa vent in the side of the blow-pipe; as the blow-pipe rises with itscharge of'glass the neck is first formed, then the 'plug is re- 55placed in the vent of the blow-pipe, and as the latter continues torise, the means for raising the carriage upon which the blowp'ipe iscarried, and the means for controlling the pressure of the air passingfrom the .0 blow-pipe intothe cylinder is so controlled,

that the cylinder is gradually formed. AL though the most delicatelyadjusted mechanisms for the raising of the carriage that supports theblow-pipe, and for the feeding of airinto the same have been employed,and

although great skill may be used in handling the same, the diflicultyremains that however perfectly the air-pressure may be maintained in theglass-cylinder, if there is the least interruption in the upwardmovement of the blow-pipe, the air-pressure within the cylinder isaffected and the result is that a pufi' or a distention of more or lessextent is formed in the body o" the cylinder and it is it'hile cylindersin which these puti's occur may be later worked Patented Got. 5, 19%)9.

Serial No. 411,100.

out; in the process of reheating and flattening on the flattening stone,the product is objectionable because the surface wilt always bear thedemarcations incident to its having had to be kept on the flatteningstone for an abnormal length of time. Other deleterious results fromthese puffs or distortions are, that in the capping qtl' operation on acylinder having such imperfections, it' the capping ott wire should liepartly in the groove and partly on the ridge of the putt, the cylin derwill almost invariably be shattered and destroyed.

Objects of my invention are to provide a carriage and attachmentsthereto, adapted to be employed in connection with the structure andwith means already in use in glassmaking machinery of the kind referredto for raising and lowering the blow-pipe and controlling theair-pressure, whereby the air-pressure in the cylinder that is beingformed will be automatically maintained equable, and with that end inview my in vention conslsts of the new construction, comblnatlon andarrangement. of parts, and

the objects of my invention are accomplished by the mechanism describedherein, illus trated in the accompanying drawings, and pointed out inthe appended claims.

Similar characters of reference refer to corresponding parts throughoutthe several views, in which Figure 1 is a side view showing my inventionin position in readiness to be operated, the drawing-kiln being shown insection and the main portion of the supporting structure of the verticalguide-bars being not shown. Fig. 2 is a horizontaltransverse sectionalview taken on the line 2-2 Fig. 1. Fig. 3 is a horizontal transversesectional view taken on the line 33 Fig. 1. Fig. 4 is a horizontaltransverse sectional view taken on the line 4-4 Fig. 1. Fig. 5 is a'view of my invention as seen in the direction indicated by thearrowinFig. 1. Fig.6 is an enlarged side view and Fig. 7 is a verticalcentral sectional view of the escapelnent-regulator. Fig. 8 is a frontview of the escapementregulator the central portion of the shieldplatehaving been broken away, and Fig. 9 is a rear view of the.escapement-regulator taken on the line 9-4) Fig. 6.

In order to make clear the mode of application to use of my invention Ihave shown the drawing-kiln A, and a portionv of the structure B, whichsupports and sustains in correct position the guide-bars which areusually made of round iron or ubing and are so held in position thattheir outer surfaces are free and unobstructed.

D designates the air-supply pipe which is connected telescopically tolike supervening pipes, and through which pipes the air for blowing theglass is passed.

E designates the usual member fastened to the carriage and connected tothe power mechanisms employed for raising and lowering the carriage.

' conformation as shown in Fig. 3-, ar secured in position by the boltsH and have the v horns H The internal faces of these horns G is thecoupling N, its bottom having thesocket My improved carriage andescapementregulator has-the body F made of metal of. substantial weightand thickness having the" arm F perforated vertically for theslidsingly-disposed air-pipe G which will be hereinafter referred to.Secured on the opposite sides of the body- F at a suitable dis"- tancebelow the arm F are the cross-head bars H. These cross-head bars are ofthe oppositely disposed ends flared apart and so bent as to form therecess M as plainly shown in Fig 4:.

Slidinglydisposedin the arm F is the a metallic air-tube G'having thecollar G -se-.

cured thereon by the set-screw G". A union connection G is providedsbthat connection may be easily made to the air pipe D forming a part ofthe machine to which my invention is applied and attached.

' Secured on the bottom end of the alr-tube cup-shaped socket N Odesignates a coil-spring its upper and lower ends being pressed againstthe arm F and coupling N respectively so that the airtube G is straineddownwardly.

P designates the blow-pipe having the well known head P The end P oftheblow-pi e is rounded in form to fit the of the coupling N. Ata properdistance from its end the blow-pipe has the rigidly-secured collar Padapted to rest on the hornsH and support the blow-pipe in 'position.The ease with which the blowpipe be placed inposition in the'car riageand air-tight connection made withthe air-tube G is readil apparent; theblowpipe is disposed towar the horns H so that the collar Pwillbeengaged; 'treend l is .so

forme then meets the socket N As the blow-pipe swings downwardlyit-s'lides into the recess clamp L and is retained yieldingly in the position' as shown ingFig; 1.

Connected to the coupling N bythe con= duit Q, that has the valve Qisthe' air-drum R the frontal face R of'which is machined and againstwhich face R resides the machined disk S. Formed integral with the Mformed by the tongues of the spring air-drum R is the dove-tailR- uponwhich is movably disposed the support-clamp T. This. support-clamp isformed with the vertical slot I and a recess at its bottom suitable tofit about the dovetail R and may be clamped at desired ,positions alongthe dove-tail, by thetliumb-sc'rew U,

T and T designate holes in which the pin V is inserted; Uponv this inis'supported pivotally the gage-arm which has the downwardly extendingleg W "to which is rigidly secured the disk" S. The function of the holeS that is provided in the disk,

will be presently referred to.- .The diameter of the disk" isslightljsnialler than the outside diameter of .the'air-drum so that thedisk in its movement intoand out of contact with the face R ofthe'air-drum, will not impinge against the flanges" X of theshield-plate X. This shield-plate is made of sheet metal of proper gage,has the flanges X riveted to the flange of the airdruni, and

' W". designates holes in the gage-arm W '1 spaced as'shown in Fig. 7 ontwo horizontal linesthe same distance apart vertically as the distancebetween the holes T and T By the construction just described it will beobserved that by adjusting the position of the support-clamp on the"dove-tail and the use of the pin V in any desired one of the vholes Wthe normal pressure,, of the disk S against the'face B may be gaged to anicety, so that in the slightly abnormal ac-' cumulation ofair-pressure'ins'ide the drum R, the disk will be moved momentarily, and

(positioned that the "openings Y are as soon as the pressure is relievedwill instantly return toits normal closed osition. The function of theshield-plate is to shield the disk and the .escapement about the same.from the'efiect of outer disturbances or adverse air-currents.

My invention is shown embodied in the form of construction deemedpreferable and.

is easily applied to use, it being understood that the rear portions ofthe cross-head bars -H and J are of such'dimensions, and the recesses Kare of such form, that when the cross-head bars are bolted to the body Fthe 1 carriage will be slidinglysu ported on the guide-bars C. v Theair-tube is thenconnected to the air-ripe -D by the" suitableunion-connection and the collar G is set in proper position withreference to the so resisted bythe 'riage is lowered in the usual mannerto proper position. The blow-pipe is then. so disposed by theoperativethat the collar P u-ili' engage the horns H and the end P willengage the socket N l of the coupling N the. blow-pipe will then of itsown weight assume the vertical position and will be clamped -in positionby the spring-clamp L. The strain of the spring O'is such that when.placing in position of the blow-pipe as ust describexl, the jointure of,the end P and the socket N will be airtight. The carriage is thenlowered and the blow-pipe'dipped mto'the molten glass that is retainedin the drawing-kiln. The airpressure is then introduced and iscontrolledtogether with the, control of the raising of the carriage, inthe usualway. Upon completion of the neck, the valveQ is opened, and theblowing of the cylinder commences, the air-pressure being ofpie-determined degree, and the gage-arm W'and 'su port clamp- Tbitvingthat the normal escapement will be rou h the conduit Q, drum R andhole-S; Ifor any reason, as the carriage rises and the cylinder is beingformed, there should be any interruption of the smooth and regulartravel of the carriage, the tendency of the air-pressure in the cylinderto increase momentarily and to produce the objectionable puff ordistention is immediately overcome by the-automatic and instant actionofthe delicately balanced disk S which will move permitting suchescapement and-then stopping the same in such manner that theairpressure within the c linder is maintained cquable throughout theentire operation 0 blowing the same.

What I claim as new jhd desire-to secure by Letters Patent of tli'qUnited States, is-- 1. In glass makingjmachinery of the'kind describedthe coinbmation of a carriage, a forked support arm theroohjhaving' itstines curved upwardly, a'blow'pipe provided with an annular lug near itsupper end and sustained thereby 'removabl on said forked support, theend'of sai blo'vvipe being rounded, an air talbe'carriedby t ecarriagel. and slidingl disposed therein above the blow-pipe and havingits bottom provided ith a socket to fit the rounded end-of the:

ess,eea-- v been setaccordin y, so

blow-pipe, a lug on said air-tube to support same when it is notinengagement with the blow-pipe, aspring arranged between the lower endof the air-tubeand the carriage 4 to press the air-tube against theblow-pipe,

when the latter is disposed in position on the forkedsupport.

2. An attachment ehinery of the kind an air drum of diametersubstantially larger than that of the air tube, a conduitto entercentrally the closed side of said air drum and adapted to be connectedto the air tube, a plate hingedly supported and balanced exteriorly onthe. open side of said air drum sofas to normally close thesaid openside of said air drum, but which'is free to swing 0 en. y 3. An chineryof the for glass forming maatt-acln'nent for glass formingmakinddescribed, comprising an air-d'rumadaptedto be-connected to theair-tube, a disk supported on said air-drum to yieldingly' close thesame, a shieldsecured to said air-drum and inclosing-said disk,substantially as described.

4. In a glass forining machine of the kind described the combination ofthe air-tube, of a conduit secured thereto havin a valve therein, anair-drum secured 'to sai and having an adjustable support memberthereon, a disk to fit upon and yieldingly close said air drum, saiddisk having a gage-.

her and provided wit holes arranged successively therein, substantiallyas described.

5. In a glass forming machine of the kind described the combination'ofthe air-tube, a conduitsecured thereto having a valve therein, anair-drum secured to said conduit and having an adjustable support memberthereon, a disk to-fit upon and yieldingly close said air-drum, saiddisk having a gagearm to engage said adjustable support memberandprovided with holes arranged successively' therein, a shield secured .tosaid "air-drum and-inclosing said disk, substantially as described.

hereof. I have signed my In testimony name to this specification in thepresence of 'two subscribing witnesses.

WILLIAM W. W. KEY ES.

Witnesses:

' ETHEL L. LISTER,

TnoMAs L. RYAN.

described, comprising -arm to engage said ad'ustable support mem-

